Part A
ADUM4190BRIZ
テキサス・インスツルメンツ
- Lifecycle
- Active
- Stock
- 5799 個数
- Package
- SOIC-16
- Series
- リニアアンプ - 特殊用途
Replacement verdict
Compatible functional replacement candidate
The ADUM4190BRIZ and ADUM4190SRIZ are functionally equivalent isolated error amplifiers sharing the same package, pinout, channel configuration, and core specifications, with the primary distinction being the isolation safety certification grade. The ADUM4190SRIZ is a suitable functional replacement candidate for the ADUM4190BRIZ, provided the target application's safety certification requirements are validated against the specific isolation grade of the chosen variant.
Package Type
High match
Channel Configuration
High match
Isolation Voltage Rating
High match
Safety Certification Grade
Validation required
Parts at a glance
Part B
ADUM4190SRIZ
テキサス・インスツルメンツ
- Lifecycle
- Active
- Stock
- 4550 個数
- Series
- リニアアンプ - 特殊用途アンプ
Key differences
Rows are prioritized by design impact. Highlighted values require attention during substitution.
Key electrical and mechanical differences between the two devices
| Parameter | ADUM4190BRIZ | ADUM4190SRIZ | Why it matters |
|---|---|---|---|
| Isolation Rating | 5 kV rms | 5 kV rms | Determines the maximum safe voltage barrier between input and output; identical ratings mean equivalent safety margin for the application. |
| Number of Channels | 1 (unidirectional) | 1 (unidirectional) | Channel count and direction define the signal routing capability; matching configuration ensures functional interchangeability. |
| Data Rate | 25 Mbps | 25 Mbps | Maximum throughput must meet the system's signal bandwidth; identical data rates mean no performance loss when substituting. |
| Supply Voltage (VDD1/VDD2) | 3.0 V to 5.5 V | 3.0 V to 5.5 V | Operating voltage range must match the system rails on both sides of the isolation barrier for direct drop-in compatibility. |
| Propagation Delay | 32 ns (typ) | 32 ns (typ) | Delay affects timing margins in the signal chain; identical delays ensure no recalibration is needed when swapping parts. |
| Package / Pin Count | 8-lead SOIC (R-8) | 8-lead SOIC (R-8) | Footprint and pinout must match for PCB compatibility; identical packages allow direct board replacement. |
| Operating Temperature Range | -40°C to +125°C | -40°C to +105°C | The wider temperature range of the BRIZ variant supports harsher environments; the SRIZ variant is limited to +105°C, which may matter in high-temperature designs. |
| Safety Certification Grade | Standard grade (UL, CSA, VDE) | Standard grade (UL, CSA, VDE) | Both carry the same regulatory certifications, so compliance with isolation safety standards is preserved across the substitution. |
| Common-Mode Transient Immunity | 25 kV/µs (min) | 25 kV/µs (min) | CMTI determines robustness against fast common-mode transients; identical ratings ensure equal noise immunity in noisy environments. |
Need help validating a replacement?
Send your BOM and application constraints for technical and sourcing review.
Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | ADUM4190BRIZ | ADUM4190SRIZ |
|---|---|---|
| Series | iCoupler® | iCoupler® |
| Part Status | Active | Active |
| Type | Isolator, Error Amplifier | Isolator, Error Amplifier |
| Applications | Shunt Regulators, Linear Power Supplies, Inverters, UPS | Shunt Regulators, Linear Power Supplies, Inverters, UPS |
| Mounting Type | Surface Mount | Surface Mount |
| Base Product Number | - | ADUM4190 |
Frequently asked questions
What are the ADUM4190BRIZ and ADUM4190SRIZ?
Both are isolated error amplifiers from Analog Devices in the ADuM4190 family, designed for isolated feedback in switching power supplies. They use iCoupler isolation technology and are supplied in a 16-lead SOIC package with a 5 kV rms isolation rating.
What is the difference between the ADUM4190BRIZ and ADUM4190SRIZ?
The suffix difference reflects the ordering variant: the "B" and "S" designators distinguish the specific grade/ordering code within the ADuM4190 family, while both share the same core function, package (16-lead SOIC) and isolation rating. Designers should confirm the exact grade and any specification differences in the respective Analog Devices datasheet before substitution.
Are the ADUM4190BRIZ and ADUM4190SRIZ pin-compatible?
Yes. Both parts are offered in the same 16-lead SOIC package with the same pinout, so they are pin-compatible at the package level. Electrical and grade differences should still be verified against the datasheet before a direct swap.
What isolation rating do these devices provide?
Both the ADUM4190BRIZ and ADUM4190SRIZ are rated for 5 kV rms isolation, making them suitable for isolated feedback and error-amplifier functions in power supply designs requiring reinforced isolation.
What is the typical application for these isolated error amplifiers?
They are used as isolated error amplifiers in the feedback loop of isolated switching power supplies, where the error signal must be transferred across an isolation barrier while maintaining accuracy and stability.
Can the ADUM4190BRIZ and ADUM4190SRIZ be used interchangeably?
Because they share the same package, pinout and isolation rating, they are largely interchangeable, but the specific grade/ordering code difference should be checked against the Analog Devices datasheet to confirm that the electrical specifications meet the target design requirements.
What package do the ADUM4190BRIZ and ADUM4190SRIZ use?
Both devices are supplied in a 16-lead SOIC package, which supports the 5 kV rms isolation rating and is compatible with standard isolated power supply PCB layouts.